What is the cheapest airline that flies from Louisville Intl to Sydney Kingsford Smith?

United Airlines is the most popular carrier operating from Louisville Intl to Sydney Kingsford Smith

What airlines fly to Sydney?

United Airlines, American Airlines and Qantas Airways are the top three most popular airlines that fly to Sydney from Louisville according to our data. United Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 5 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

There are 2 operators available for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport as of May 2026.

How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$704 Cheap Flights from Louisville to Sydney in 2026

Q: What is the typical price of a round-trip flight between Louisville and Sydney?

Prices are currently low for flights on this route. Typical prices usually range from $1,408 to $1,192. The lowest price recently found on this route was $1,295.

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Find the cheapest flights from Louisville to Sydney

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3:41 pm - 7:00 am

SDF

SYD

25h 19m

2 stops

9:30 am - 8:23 pm

SYD

SDF

24h 53m

2 stops

$1,295Air New Zealand

Tue, Jun 9 - Wed, Jun 17

8:00 am - 7:00 am

SDF

SYD

33h 00m

3 stops

9:30 am - 7:00 pm

SYD

SDF

23h 30m

2 stops

$1,296United Airlines

Tue, Jun 9 - Wed, Jun 17

3:25 pm - 6:55 am

SDF

SYD

25h 30m

2 stops

9:30 am - 8:01 pm

SYD

SDF

24h 31m

2 stops

$1,297Air New Zealand

Tue, Jun 9 - Wed, Jun 17

8:00 am - 6:55 am

SDF

SYD

32h 55m

1 stop

9:30 am - 8:01 pm

SYD

SDF

24h 31m

2 stops

$1,298Air New Zealand

Tue, Jun 9 - Wed, Jun 17

11:00 am - 6:55 am

SDF

SYD

29h 55m

2 stops

9:30 am - 8:36 pm

SYD

SDF

25h 06m

2 stops

$1,343Air New Zealand

Wed, Aug 26 - Sat, Sep 5

3:25 pm - 7:00 am

SDF

SYD

25h 35m

2 stops

9:30 am - 10:15 pm

SYD

SDF

26h 45m

2 stops

$1,344United Airlines

Wed, Aug 26 - Sat, Sep 5

11:00 am - 6:55 am

SDF

SYD

29h 55m

2 stops

9:30 am - 7:07 pm

SYD

SDF

23h 37m

2 stops

$1,345Air New Zealand

Wed, Aug 26 - Sat, Sep 5

5:50 pm - 7:00 am

SDF

SYD

47h 10m

2 stops

10:20 am - 7:07 pm

SYD

SDF

22h 47m

2 stops

$1,361Air New Zealand

Sat, Aug 1 - Sat, Aug 29

8:00 am - 7:00 am

SDF

SYD

33h 00m

3 stops

10:20 am - 7:07 pm

SYD

SDF

22h 47m

2 stops

$1,394United Airlines

Sat, Aug 1 - Sat, Aug 29

9:26 am - 6:25 am

SDF

SYD

28h 59m

1 stop

2:55 pm - 7:31 pm

SYD

SDF

44h 36m

2 stops

$1,446Multiple Airlines

Wed, Nov 4 - Fri, Nov 13

Qantas Airways flights from Louisville to Sydney

Our best Qantas Airways deals on Louisville to Sydney flight tickets

Qantas Airways

Oct 12

SDF5:50 pmLouisville Intl

22h 05m

1 stop

SYD6:55 amSydney Kingsford Smith

Oct 20

SYD6:15 pmSydney Kingsford Smith

43h 51m

2 stops

SDF11:06 pmLouisville Intl

$1,794

Qantas Airways

Oct 12

SDF3:59 pmLouisville Intl

23h 56m

1 stop

SYD6:55 amSydney Kingsford Smith

Oct 20

SYD1:00 pmSydney Kingsford Smith

19h 29m

1 stop

SDF5:29 pmLouisville Intl

$1,905

Qantas Airways

Oct 18

SDF5:50 pmLouisville Intl

22h 05m

1 stop

SYD6:55 amSydney Kingsford Smith

Oct 31

SYD1:05 pmSydney Kingsford Smith

19h 24m

1 stop

SDF5:29 pmLouisville Intl

$1,916

United Airlines flights from Louisville to Sydney

Our best United Airlines deals on Louisville to Sydney flight tickets

United Airlines

Jun 9

SDF8:00 amLouisville Intl

33h 00m

3 stops

SYD7:00 amSydney Kingsford Smith

Jun 17

SYD9:30 amSydney Kingsford Smith

23h 30m

2 stops

SDF7:00 pmLouisville Intl

$1,296

United Airlines

Aug 26

SDF3:25 pmLouisville Intl

25h 35m

2 stops

SYD7:00 amSydney Kingsford Smith

Sep 5

SYD9:30 amSydney Kingsford Smith

26h 45m

2 stops

SDF10:15 pmLouisville Intl

$1,344

United Airlines

Aug 1

SDF8:00 amLouisville Intl

33h 00m

3 stops

SYD7:00 amSydney Kingsford Smith

Aug 29

SYD10:20 amSydney Kingsford Smith

22h 47m

2 stops

SDF7:07 pmLouisville Intl

$1,394

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 6/9

3:41 pm-7:00 am

2 stops25h 19m

Sydney Kingsford Smith

Wed 6/17

9:30 am-8:23 pm

2 stops24h 53m

$1,295

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 6/9

8:00 am-7:00 am

3 stops33h 00m

Sydney Kingsford Smith

Wed 6/17

9:30 am-7:00 pm

2 stops23h 30m

$1,296

Quickest round-trip

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 6/9

3:25 pm-6:55 am

2 stops25h 30m

Sydney Kingsford Smith

Wed 6/17

9:30 am-8:01 pm

2 stops24h 31m

$1,297

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Tue 6/9

8:00 am-6:55 am

1 stop32h 55m

Sydney Kingsford Smith

Wed 6/17

9:30 am-8:01 pm

2 stops24h 31m

$1,298

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 8/26

11:00 am-6:55 am

2 stops29h 55m

Sydney Kingsford Smith

Sat 9/5

9:30 am-8:36 pm

2 stops25h 06m

$1,343

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 8/26

3:25 pm-7:00 am

2 stops25h 35m

Sydney Kingsford Smith

Sat 9/5

9:30 am-10:15 pm

2 stops26h 45m

$1,344

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 8/26

11:00 am-6:55 am

2 stops29h 55m

Sydney Kingsford Smith

Sat 9/5

9:30 am-7:07 pm

2 stops23h 37m

$1,345

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 8/1

5:50 pm-7:00 am

2 stops47h 10m

Sydney Kingsford Smith

Sat 8/29

10:20 am-7:07 pm

2 stops22h 47m

$1,361

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Sat 8/1

8:00 am-7:00 am

3 stops33h 00m

Sydney Kingsford Smith

Sat 8/29

10:20 am-7:07 pm

2 stops22h 47m

$1,394

LouisvilleSydney

SDF - SYD

SDFSYD

Louisville Intl

Wed 11/4

9:26 am-6:25 am

1 stop28h 59m

Sydney Kingsford Smith

Fri 11/13

2:55 pm-7:31 pm

2 stops44h 36m

$1,446

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Louisville and Sydney?

What is the cheapest month to fly to Sydney?

In general, March is the cheapest month to fly from Louisville to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you are unable to visit Sydney during the month of March, then departing from Louisville during the month August is also very affordable. Most momondo users find prices during this month for around $1,167.

Can stopping save me money on Louisville to Sydney flights?

You could potentially save up to 18% on your flight if you consider stops on a Louisville to Sydney flight.

When to book flights from Louisville to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Louisville to Sydney (SDF to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Sydney

Fastest flight time	24h 10m
Direct flights	None

The fastest flight from Louisville to Sydney takes 24h 10m

There are no direct flights from Louisville to Sydney. There are no popular flight routes from Louisville to Sydney.

Search flight deals

Frequently asked questions about flying from Louisville to Sydney

How far is Louisville Intl to Sydney Kingsford Smith by plane?
A flight from Louisville Intl to Sydney Kingsford Smith will travel around 9284.6 mi. A reasonable flight in good conditions will take 24h 10m.
When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?
Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?
There are 2 operators available for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport as of May 2026.
How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Louisville to Sydney?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Louisville to Sydney is United Airlines (77% of total bookings). The next most popular airline is Delta (23%).

Best airlines flying from Louisville to Sydney

Compare and see reviews for airlines that fly from Louisville to Sydney with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $662	Free Cancellation	Rating 7.9 8,451 reviews		Search Delta flights
United Airlines	PriceFrom $973	Free Cancellation	Rating 7.4 9,748 reviews		Search United Airlines flights

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Lithgow

Coogee

Manly

Cronulla

Terrigal

Charlestown

Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to Sydney for you.

Can I find flights from Louisville to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Louisville to Sydney flights to just show those with flexible booking policies.

How can momondo help me find flights from Louisville to Sydney?

momondo provides multiple filters to help you find the best flight to Sydney from Louisville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Louisville to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Louisville to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

An easier way to manage your Sydney trip

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Cheap flights from Louisville to Sydney from $704

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Sydney departing on 7/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Qantas Airways flights from Louisville to Sydney

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How to get the cheapest flight ticket from Louisville to Sydney

What is the typical price of a round-trip flight between Louisville and Sydney?

What is the cheapest month to fly to Sydney?

Can stopping save me money on Louisville to Sydney flights?

What is the cheapest airline that flies from Louisville Intl to Sydney Kingsford Smith?

What airlines fly to Sydney?

When to book flights from Louisville to Sydney

Cheap Louisville to Sydney (SDF to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Sydney

Fastest flight time

Direct flights

Frequently asked questions about flying from Louisville to Sydney

Best airlines flying from Louisville to Sydney

Compare and see reviews for airlines that fly from Louisville to Sydney with momondo

Traveling to a place near Sydney?

Why use momondo?

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in Sydney. Availability may vary depending on flight origin and airline.

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